GB610541A - Improvements in or relating to variable-stroke pumps - Google Patents
Improvements in or relating to variable-stroke pumpsInfo
- Publication number
- GB610541A GB610541A GB3066545A GB3066545A GB610541A GB 610541 A GB610541 A GB 610541A GB 3066545 A GB3066545 A GB 3066545A GB 3066545 A GB3066545 A GB 3066545A GB 610541 A GB610541 A GB 610541A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stroke
- pistons
- delivery pressure
- pumps
- variable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/14—Pumps characterised by muscle-power operation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Reciprocating Pumps (AREA)
- Transmission Devices (AREA)
Abstract
610,541. Reciprocating pumps. ELECTROHYDRAULICS (MESSIER), Ltd., (formerly MESSIER AIRCRAFT EQUIPMENT, Ltd.), and CALDWELL, H. B. Nov. 15, 1945, No. 30665. [Class 102 (i)] A variable-stroke reciprocating pump, preferably hand-operated, comprises a pair of pistons 1, 2 that are connected by rods 5, 7 to a T- shaped member 6 that is pivoted at its centre E to a member which moves on line XY a distance proportional to the delivery pressure of the pumps; the member may be directly exposed to the delivery pressure or moved by a servomotor. The end of the shank of the T-shaped member 6 is pivoted at F to a member that can slide longitudinally on the handle 14 that has a fixed pivot B. As the delivery pressure rises, the pivot E is lowered and the stroke of the pistons is reduced for equal movements of the handle 14. Whatever the stroke, the pistons always reach the same lowest point in the cylinders. An alternative arrangement is described wherein one piston is eliminated and the remaining piston is double-acting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3066545A GB610541A (en) | 1945-11-15 | 1945-11-15 | Improvements in or relating to variable-stroke pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3066545A GB610541A (en) | 1945-11-15 | 1945-11-15 | Improvements in or relating to variable-stroke pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB610541A true GB610541A (en) | 1948-10-18 |
Family
ID=10311207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3066545A Expired GB610541A (en) | 1945-11-15 | 1945-11-15 | Improvements in or relating to variable-stroke pumps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB610541A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0953763A3 (en) * | 1998-04-28 | 2000-08-16 | Weber-Hydraulik GmbH | Manual pump |
-
1945
- 1945-11-15 GB GB3066545A patent/GB610541A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0953763A3 (en) * | 1998-04-28 | 2000-08-16 | Weber-Hydraulik GmbH | Manual pump |
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